Katia developed from a tropical wave south of the Cape Verde Islands on August 29. Late on August 31, Katia was estimated to have attained hurricane status, but it was downgraded to a tropical storm on September 1, then upgraded to a Category 1 hurricane, then back down to a tropical storm on September 3.
Hurricane/Tropical Storm Katia Tracking History (from Weather Underground)

Tropical Storm/Hurricane Katia 5-Day Forecast Map (from Weather Underground)
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